NAT not working when applying WAN ip address object(created by custom)

Question

Hi all, 
 
 I am new on this product and have search around the internet and this forum for a couple of day with no luck. 
 My problem is the NAT not working when applying WAN ip address object(created by custom), but it will work if i apply the wan interface ip address (created by wizard). 
 My network config: 
 Firewall WAN interface: 100.10.10.1/24 gw 100.10.10.254 
 Firewall DMZ interface: 192.168.10.1/24 
 
 My requirement is simple, let's say config NAT rules for public user to access my DMZ servers: 
 DMZ server A: LAN ip address 192.168.10.10 nat to 100.10.10.10 with HTTP,HTTPS and RDP services. 
 DMZ server B: LAN ip address 192.168.10.20 nat to 100.10.10.20 with SSH 
 
 Action token: 
 1) tested the wan ip address object is working fine at another brand of firewall 
 2) trace on the live log, cannot see any log is related to NAT rules 
 3) re-definite the wan and dmz ip address object to blind to "any" interface 
 4) create additional ip address for those wan ip address then apply to the NAT rules

Karlos · Accepted Answer

Hi asl hknwk 
 We have a guide for DNAT setup with an additional address for Astaro Security Gateway: Astaro Security Gateway: How to Port Forward Service Ports with NAT 
 Scenario 3 will apply to your situation. The instructions will be slightly different. You can disregarded step 3 (Create Packet filter access). The equivalent of this is ticking the checkbox 'Automatic firewall rule' under the Action section of your NAT configuration.